Unity vs Gamemaker Studio 2: What are the differences?
Developers describe Unity as "Unity brings state-of-the-art, affordable multiplatform tools and services to developers of interactive content everywhere". Unity is the ultimate game development platform. Use Unity to build high-quality 3D and 2D games, deploy them across mobile, desktop, VR/AR, consoles or the Web, and connect with loyal and enthusiastic players and customers. On the other hand, Gamemaker Studio 2 is detailed as "A 2D development environment". It has everything you need to take your idea from concept to finished game. With no barriers to entry and powerful functionality.
Unity and Gamemaker Studio 2 can be categorized as "Game Development" tools.
When I started to learn game development, I've tried to use Unity multiple times because it's the most popular option. But never get it worked because of the clunky UI which is very hard to understand for a new user. After some time, I've decided to try UE4 despite there was a lot of rumors that it's "heavy" or requires an AAA team. And suddenly it clicked, everything works as I expecting, UI is clear and much more powerfull, no need to build custom tools to work on the game itself. Blueprints are very helpful for beginners, C++ has a lot of "syntax-sugar" - macroses, a lot of convenient in-engine types for everything. Later while working with Unreal, I've realized it has very consistent roadmap with constant improvements and adding new features. At the same time, each major version update is painless so you can upgrade your project during development to get new features. UE4 is free to use with the full list of features and you only have to pay royalty after getting your first $1 million from the project (and that's just the default case, you can always discuss custom license with an upfront fee, if you want to).
I chose Unity over Unreal Engine because Unity has a more user friendly UI for beginners looking to learn game development. Additionally, as someone who uses a lot of online resources to learn new languages and tools, I found a lot of tutorials covering game development with Unity as the core engine. This doesn't mean Unreal is not a great choice for game development, I just personally found learning game development much smoother with the amount of resources available with Unity.